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pic
图像处理中最常用的各种国际标准测试图像，包括Lena、Barbara、Cameraman、Peppers等图片的多种格式。(The most commonly used in image processing in various international standard test images, including Lena, Barbara, Cameraman, Peppers, and other images in multiple formats.)
- 2012-06-11 16:41:08下载
- 积分：1
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GeoTrans
图像的几何变换，基于VC++的MFC的。旋转、放大、缩小等(Image geometric transformation, based on the VC++ the MFC. Rotate, zoom in, zoom out, etc.)
- 2013-02-13 10:53:13下载
- 积分：1
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C# 窗口捕捉 句柄 实例源码下载
C# 窗口捕捉 句柄 实例源码下载
- 2015-01-19下载
- 积分：1
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A-Watermarking-Algorithm(MATLAB)--
盲水印提取时不需要参考原始载体图像,在信息隐藏、版权保护等方面具有更广泛的应用前景。提出的盲水印算法在分块离散余弦变换(DCT)和离散小波变换(DWT)的基础上,利用关系双方DCT系数和DWT系数在受到攻击时具有相同变化趋势的特点,采用关系嵌入和量化嵌入的自适应选择嵌入策略,较大幅度地提高了盲水印提取的鲁棒性。同时在量化嵌入中采用抖动调制,实现了水印透明性和鲁棒性调节的便捷性。大量仿真实验结果表明该算法对噪声干扰、低通滤波、JPEG压缩、对比度增强等攻击有很好的鲁棒性和透明性。关键词 数字水印盲水印关系嵌入量化嵌入离散余弦变换离散小波变换
按这篇文章的算法，自己编的matlab,没有攻击时水印提取率为1，加水印后图像PSNR有45+，。有攻击后提取率也有0.9+。(Blind watermark extraction can be fulfilled without referring to the original host image. Therefore it hasmuch
prospective applications in the fields of information hiding and copyright protection. Based on blocking Discrete Cosine
Transform (DCT) and blocking DiscreteWaveletTransform (DWT), the proposed blind watermarking algorithm uses an
embedding strategy of adaptively selecting either relationship embedding or quantization embedding. The relationship em-
bedding comes from the observation thatboth themagnitudes of coefficients concerned in the relationship usually have thesame change trend when the image is attacked. This strategy remarkably improves the robustness ofwatermark extraction.In addition, dithermodulation is used in quantization embedding, bywhich the tradeoff between transparency and robus-tness ofwatermarking can be easily adjusted. Simulation results show that the algorithm is fairly robust against the attacks such as noise, filtering, compression, and contrast )
- 2013-04-14 16:15:47下载
- 积分：1
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20060418083529571
彩色车牌的一种新的阈值分割算法的实现,可以参考实现其他型状的彩色分割
(color plates of a new threshold segmentation algorithm achieved, we can make reference to the achievement of other shapes color segmentation)
- 2006-08-10 16:38:32下载
- 积分：1
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Grid
基于OpenCV实现的图像切割程序，通过程序中参数设置分块的数量和大小(The project is uesd to break an image into block)
- 2013-12-01 22:31:29下载
- 积分：1
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傅里叶谱与频域低通滤波
说明： 傅里叶谱与频域低通滤波 (a)从图书网站下载图4.41(a)并计算其(居中)傅里叶谱。(b)显示频谱。(c)在等式(4.8-7)中实现高斯低通滤波器。您必须能够指定结果2D函数的大小，M x N。此外，您必须能够指定高斯函数的中心位置。(d)从图书网站下载图4.41(a)，并对其进行低通滤波，以复制图4.48中的结果。(Fourier Spectrum and Lowpass Filtering in Frequency Domain
(a) Download Fig. 4.41(a) from the book web site and compute its (centered) Fourier spectrum.
(b) Display the spectrum.
(c) Implement the Gaussian lowpass filter in Eq. (4.8-7). You must be able to specify the size, M x N, of the resulting 2D function. In addition, you must be able to specify the location of the center of the Gaussian function.
(d) Download Fig. 4.41(a) from the book web site and lowpass filter it to duplicate the results in Fig. 4.48.)
- 2018-12-24 21:49:57下载
- 积分：1
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yasuoshuiyin
说明： 将基于小波变换的嵌入水印后的宿主图像进行压缩处理再提取灰度水印。(will be based on the wavelet transform the embedded watermark image of the host compressed again from Gray watermark.)
- 2006-04-27 09:09:14下载
- 积分：1
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图像边缘检测7种算子代码
编程实现灰度图像的几种常用的边缘检测算法，包括：梯度边缘检测算法、Roberts边缘检测算法、Sobel边缘检测算法、拉普拉斯边缘检测算法、canny边缘检测算法、Prewitt边缘检测算法和Krisch边缘检测算法。
- 2019-05-20下载
- 积分：1
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d3dle5
说明： 计算机图形学中应用VC++6.0和DirectX 8.0 SDK制作彩色旋转的金字塔和正方体的小程序(computer graphics application VC 6.0 and DirectX 8.0 SDK produced color rotating cube pyramid and the small program)
- 2005-12-14 13:49:08下载
- 积分：1
